we heard the toothpaste tube threat, brian has gone through the various incarnations, computer cartridge, the underwear bomber. al asiri and al qaeda have invested a lot in developing new meth thotds to get around our screening. so when you ve got information that s credible, even when it s not specific, especially at the time where you know that there s a threat to the olympics, you want to be you want to alert the airlines so they can i think you ll probably see more swipes if you re boarding a plane headed for the u.s., more of these bomb detections, trace element tes that you see at an airport from people boarding with their carry-on luggage, flights bound for the u.s. from overseas. until they get more information or are able to either dismiss or confirm the threat. but for the department of homeland security, to go ahead and issue a warning like this, they have to have something to justify it. people are going to be nervous